Book: fix broken link in merge-migration.md

[silvekkk]

Hi there, the original link is expired, I found this one may be the correct one.

[CLAassistant]

All committers have signed the CLA.

[jimmygchen]

Thanks for reporting this, however I don't think the link provided is the right link for configuring Besu, I don't see the instructions there.

[chong-he]

Maybe we can put the link to configure Besu: https://besu.hyperledger.org/public-networks/get-started/connect/mainnet

Having said that, I wonder should we add a section in the Lighthouse book titled Archived and keep all deprecated and archived pages under it? Examples include:

• this merge-migration
• https://lighthouse-book.sigmaprime.io/pi.html
• https://lighthouse-book.sigmaprime.io/key-management.html

[silvekkk]

Maybe we can put the link to configure Besu: https://besu.hyperledger.org/public-networks/get-started/connect/mainnet

Thanks for the tips fixed now!

Having said that, I wonder should we add a section in the Lighthouse book titled Archived and keep all deprecated and archived pages under it? Examples include:

• this merge-migration
• https://lighthouse-book.sigmaprime.io/pi.html
• https://lighthouse-book.sigmaprime.io/key-management.html

or we could directly delete them？

[chong-he]

Maybe we can put the link to configure Besu: https://besu.hyperledger.org/public-networks/get-started/connect/mainnet

Thanks for the tips fixed now!

Having said that, I wonder should we add a section in the Lighthouse book titled Archived and keep all deprecated and archived pages under it? Examples include:

• this merge-migration
• https://lighthouse-book.sigmaprime.io/pi.html
• https://lighthouse-book.sigmaprime.io/key-management.html

or we could directly delete them？

That could be fine, but keeping them may serve as future references just in case (e.g., some users may want to have a read at the R Pi 4 docs, or what happened back then during The Merge).

Keen to hear from others about this